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AM. PHOTO-LIYHD, EU. FLY. QDSBDRNE'S PRUEESS.)

UNITED STATES PATENT OFFICE.

JAMES E. F. LIJLANI), OF NEW YORK, N. Y., ASSIGNOR. T0 H. ALELANI),

OF SAME PLACE.

IMPROVEMENT IN WOOD-TURNING LATHES.

Specification forming part ol' Letters Patent N0. 58,947, dated October 16, 1866.

Be it known that I, J. E. F. LELAND, of the city, county, and State otl New York, have invented new and useful Improvements in Machines for Turning Irregular Forms; and Ido hercbydeclare that the following isa l'ull, clear, and exact description thereof, which will cnable others skilled in the art to make and use the same, reference being had to the aceompanying drawings, forming part of this specification.

The present invention relates to a machine for the turning ot irregular forms, and cousists in suspending the material which is to be turned upon centers ot' a carriage, arranged to slide in a suitable way or groove ot' the bed-piece ot' the machine, in combination with one or more cutters, so arranged in connection with the said carriage and operated that as the material is carried along to the said cutters, they will be made to so act upon the material as to produce the form desired thereon,in a manner as will be hereinafter particularly explained, reference being had to the accompanying plate ot' drawings, in which- Figure. 1 is an elevation ot' the front end ot' the machine, Fig. 2,a central longitudinal vertical section taken in theplane ot' the line .r .'r,Fig. 15 Fig. 3,1m partial horizontal section taken in thc plane ot' the line y y, Fig. l.

Similar letters of reference indicate like parts.

A in the drawings represents the bcdpiece ofthe machine, B, a carriage or slide, arranged to move in a groove or way, U,of the said bedpiece A, and in the direction otl its length. This carriage B has at each end a fixed standard or puppet,]), between which the material to be turned is placed,and there suspended or iXed upon suitable centers at each end. E, a rack or toothed bar thrilled along one edge of the carriage B, and extending in the direction ot' and for a portion ot' its length, with the teeth of which rack a toothed or gear wheel, F, engages,that is suspended and turns upon a eenter of the upright back plate, G,ot' the bedpiece A.

0u the front face of the gear-wheel F a ilat disk or wheel, H, is secured, so as to revolve in conjunction therewith, that, upon its edge or periphery, is lnade of a cani or eccentric shape. Against this canredge of the wheel H one end ot a hollow sleeve or tube, I, abuts, which tube is arranged to more and slide in a concentric tube, J, lixed or secured upon suitable supports K therefor. The tube Iextends in the direction ot' the length ot the sliding carriage B, and by the tube J, which holds it, it is arranged so as to be concentric with the centers carrying the material to be operated upon or turned, and in an intermediate position between the supportingpuppets of the carriage, the said material consequently passing through the center of the tube I, as is 0b- Yious without an)Y further explanation.

The opposite end ot' the. tube Ito that which bears against the cam-edge ot' the wheel H is made ot' a conical shape, or, in other'words, with bevelin g or inclined sides, terminating in a square shoulder, a., that lits againsta square shoulder, b,t'or1ned upon the inside ofthe surrounding tube J for the tube I.

The surrouinling tube J, at the conicalshaped end ot' the interior tube, I, terminates in a tiat head-plate,1{, in radial grooves or ways L of which plates or blocks M, carrying or holding cutters N, are arranged so as to move in and out, these plates or blocks at their inner ends bearing against the conical-shaped end of the tube l, where, by means ot' an en circling elastic band or strap applied to the outside edge of the head-plate K and einbraciug the outer ends of the said blocks M, they are lirmly held and retained.

Freni the above description of the construc tion and arrangement of the various parts composing my improved machine for turning irregvnlar forms, it is plain to be understood that it' the gear-wheel F be revolved in the proper direction the slide carrying the material to be turned or acted upon will be moved forA ward, while at the same time, through the action of the eccentric or cam-shaped edge of the disk II, attached to such gear-wheel upon one end ot' the tube, together with the action ofthe elastic band or strap upon the cutter-holder plates, the cutters are made to act upon and held against the material, cutting the same and'turning it to a forni which, in the direc; tion of the length of the material, must be irregular, either more or less, according to the peculiar or irregular shape of the cam-edge hereinbefore referred to, bnt in :i trnnsverne direction, at any point of its length, always having;` the forni ot' :i perfect eirele l.ind eoneelr trie with the center or axis ofthe material.

By removing; the eeeentrio or eanmhnped disk from the eanrwheel F and substituting another for it` having a dii'l'erent Shape. or forni .of its emu-edge, any desired irregularity ol' forni in the direction of the length of the ninteriul een he produced, as is obvious without any further explanation.

I claim as new :1nd desire to ters 'Patentsecure hy Letlhe .slide 13, enrrb'ing; the material to he turned, eznn or eeeentrio wheel ll., Sliding* tnhe I, eoneentrie tube J, having eutter N, when :dl arranged together substantially in the lnzinner :1nd for the purpose described.

`The nhove Speeilientii'in oi" my invention signed hy nie.

JAMES l. I". LELANI).

Witnesses: Y

Wn. F. MiNMmnA, ALnnn'r W. nowN. 

